Waltee h



(No'Mode1.)- v I W. H. DONALDSON.

METALLIC RAILWAYTIB. Nay- 381,059.

*Patented Apr; 10. 1888.

WALTER H. DONALDSON, OF SAN FRANCISCO, CALIFORNIA, AssreNoR or ONE-HALF To ROBERT BREID, or SAME PLACE.

METALLIC RAILWAY-TIE.

SPECIFICATION forming part of Letters Patent No, 381,059, datedAprillO, 1888.

Application filed July 14, 18 87.

State of California, have in vented an Improvement in Metallic Railway-Ties; and I hereby declare the following to be a full, clear, and exact'description of the same.

My invention relates to the classof metallic railway ties or "sleepers; and my invention consists in the construction and combination of devices which Ishall hereinafter fully describe and claim.

The object of my invention is to pro vide a strong and stiff tie or sleeper and means for securing the rails thereto, which obviate the necessity of spikes and bolts, said means also providingfor fixing the gage with precision.

Referring to the accompanying drawings for a more complete explanation of my invention, Figure 1 isaperspectiveview of my tie, lookingupfrombelow. Fig.2isalongitudinalsection of same; Fig. 3 is a cross-section of same.

The tieA is constructed of rolled or cast metal, of a cross-section as shown in Fig. 3, consisting of a top plate, a, with outwardlybeveled flanges a, and a longitudinal central or T, web, a Thetop flanges and web are perforated with rectangular slots b c, for the reception of the wedges and the dogs or clamps, hereinafter described. v I

The fastenings consist of two dogs or hooks, B, and are-constructed of forged iron or caststeel and fit easily in slots b on upper face or plate, a, of the tie, the hooked portion or upper end engaging withflange of rail D and the lower or straightpo'rtjion passing below the tie and crossing each other, both in effect forming bent levers, the fulcrum of which is" the small shoulder or notch b on the back side which engages with the edge of rectangular "slots 1). A soft steel or iron wedge, O, is driven through the slots 0 in the flanges and web of the tie at right angles to plane of the dogsor levers B', and in its progress deflects the ends of said dogs or levers, bringing the upper and shorter end in contact with the rail-flanges, which they grip with a pressure the intensity of which is equal to the power of the levers moved bythe wedge. The smallerextremity, c, of the wedge will project through'web of Serial No. 244,344." (No model-.1

7 tie about. an inch'and clinched overagainst the flange a to prevent withdrawal. f

This-form of tie has great strength and stiff? I ness and is the best shape for carrying the req- 4 j uisiteweight of metal. I The employment of the fastenings described does away withall bolts and spikes. They are simple, durable,"

and efl'ective,'and are not liable to get out of place or become disarranged from any cause. 3

They. also enable the gage of the" road to be ties being previously made, theirproper posicannot be laid out of gage.

preserved by these fastenings, for the rails are securely held and cannotspread.

'Having thus described my inventiomwhat I I claim as new, and desire tosecu-re by-Lettera Patent, is' 4 p 1. In combination with a railwaytie and the rail thereon, clamps or dogs pivoted in determined with accuracy, for, the slots in the tion is defined withiprecision "and the rails The gageisalso I the top of the tie, andhaving their upper ends,

hooked and'engaging th'e base-flanges of the rails and their lower ends passing beneath the top of the tie, and wedges driven transversely through the tie and bearing on the lower ends of thedogs,whereby they are deflected and their upper ends made to clamp the rails, substantially as described. J

2. In combinatlon wlth-a railwayrtie and the rails thereon, clamps or dogs pivotedg ing slots in the-tie, and having their upper ends hooked and engaging the base-flanges of the rails Ontheir inner and outer sides andthei'r lower ends passing in opposite directions and crossing under the top of the tie, and transverse wedges through the tie and acting ,on

ends to clamp the rails, substantially as described. I

a top plate with longitudinal slots anddownturned side flanges with transverse SIOUSLlXI 3. Ametallic railway tie or sleeper having the lower ends of the dogs to cause their upper upper endshooked and engaging the flanges of v the rails and their lower ends crossing under the top plate, and wedges driven through the slots of the sideflanges and bearing onthe lower ends of the dogs, whereby their upper.

ends are clamped on the flanges of the rails, of the side flanges and central web and bearing substantially as herein described. won the lower ends of the dogs, whereby their '4. A metallic railway tie or sleeper having upper ends are clamped on the flanges of the I a top plate with longitudinalslots, downturned rails, substantially as described. I 5

5 side flanges with transverse slots, and a central In witness whereof I have hereunto set my longitudinal web with transverse slots, in comhand. bination with clamps or dogs .pivoted in the T slots of the top plate, and having their upper WVALTER ALDSON' ends hooked and engaging the flanges of the Witnesses:

to rails and their lower ends crossing under the S. H. NoURsE,

top plate, and wedges driven through the slots H. G. LEE. 

